Lace-tipping machine



H. D. REGAR LA cE TIPPING MACHINE lV-afrchv 273,V 19.37.

Filed- Jan. 1e, ,1956

INVENTOR BYM ATToRNEYs l 9. I A male die member ward end of Ashaft 8, ismoved Parenteel Mar. 2s, 1937 a ,UNITED STATE s PATENT f OFFICELACE-TIPHNG MACHINE Harold D. Regal', Reading, Pa.

Application January 16,

8` Claims.

My invention relates to lace-tipping machines 0f `the kind shown anddescribed in my Patent No. 1,535,546, of April' Z8, `1928, and mypresent Objectis to improve certain features thereof particularlyrelating to guiding the lacings into the die and protecting the end ofthe tip-forming ribbon from harmful action of the vheated tip formingdies between the feeding movements of the ribbon.

With these main objects in view and with others that will be developedlater herein, myinvention comprises the improved machine constructionand the manner of its operation more fully described in the followingspecification in connection with the accompanying drawing, and the novelfeatures thereof .are specifically set forth in the appended claims. I

Fig. 1 is aside elevation of a lace-tipping machine showing a preferredembodiment of my present improvements.

f Fig. 2` is a fragmentary plan view largely diagrammatic and `on asomewhat enlarged scale, looking downiupon the `tip forming dies andshowing the relation thereto of my improved feeding means for thelacings and for the feeding end `of the tip-'forming ribbon.

Fig. Sis a cross-sectional elevation taken on the line 3`3 of Fig. 2. l

Referring to the drawing, 5 indicates the supporting frame havingsuitable bearings for a power driven shaft 6, provided with a suitable Icam 1 to `longitudinally move plunger shaft 8 againgst the reverse biasof its tensioning spring I0, mounted on the forw'lth the latter into icooperative relation with a female die member I I, carried by aspring-backed rod I2 and heated as by an electrical heating unit I3. A-fixed knife blade I4 is alined with central slots provided in the diemembers I0 and II, and the advancing shaft 8 causes the die chamber ofthe engaged die members to cross said blade I4 due to yield of thespring backed rod I2.

The above parts are the same or like similar parts more fully describedin my aforesaid patent and operated in the manner therein set forth toform a tipping cover on'a' length of lacing material and midway severthe same to produce two tipped lacing ends. l

The tip-forming material 20, inthe preferred form of a strip orribbon,'is shown assupplied from a reel, thereof mounted insuitableframecarriedbrackets 2|, and its free end` is lead between'two coactingrollers `22 and 23, the lat- Y 32, and swingable ter of which is driven,as by a ratchet gear 24 having a concentrically swingable pawl-carryingarm 25 connected by a spring-biased rod 26 to an arm 21 fixed to shaft8; forward movement of shaft 8 rotating said rollers 22 and 23 to feed alength of said strip 20 to the tip-forming dies, and spring retractedmovements of said shaft 8` merely idly returning said pawl to itsinitial operative position.

In my prior patent I showed a fixed chute acting as"a guide to lead thestrip or ribbon to the dies, with the result that the strip end at thepoint of severance by the closing dies rested on the heated memberthereof between strip feeding movements, with consequent harmful effectupon the tipping material, particularly aggravated by prolonged pausesor interruptions between operations. l

To overcome the above stated harmful action of theheated die member, Ihave shown in the drawing, a chute guide 30, having a pivotal support 3lin suitable frame-carried supporting arms into lowered feeding positionrelative to die member II, or into raised nonfeeding position out ofproximity to the die heat. The chute opening in the guide 30 is adaptedfor a maximum width of strip or ribbon, and its upper surface isprovided with heat-releasing apertures 33, certain of which may beformed to receive screw pins to act as lateral guides for narrowerwidths. The guide 30 is shown with a projection 34 in the path of a pushrod 35 carried by arm 21 on shaft 8 whereby forward movement of saidshaft to close the dies and sever an end from said strip, swings theguide 30 to raised position. And an upward extension 36 from the guide30 is positioned to frictionally rub against a spring blade 31 xed toAframe 5, and to engage an end detent 38 in said spring to hold guide 3Din raised non-feeding position. Lowering of guide 30 is manuallyeffected, as hereinafter described, and it will be clear from theforegoing description that the lowered guide is positioned as in myprior patent to feed a length of tip forming strip or ribbon to thetipforming dies, but in the present case. is raised when such length issevered by the closing 'dies to carry the end of the strip and its guidechute out of proximity, to the heated die,` so that interrupted machineoperations, however prolonged can have no harmful effect on thetip-formingV material, and the friction ofspring blade 31 insuresagainst any unintended or vibratory movement of the swinging guide.

The supply of lacing material is carried on a said die members afterseverance of each tiptable 40 supported on frame-secured arms 4|, andforming strip lengt they are individually fed to the die as heretofore2. In combination with a lace-tipping machine 40, and positionedadjacent its downwardly guide member for said strip having a pivotallywise-tauted lacing to ride downward over the for swinging said guide endaway from said die forward edges ofv said arms into the die membermembers after severance of each tip-forming the arms 42, 42 havingnotches 43, 43 to perstrip length. mit the lacings to enter thetip-forming chamber, y 3, In combination with a lace-tipping machine ofsaid die. The arms 42, 42, are also positioned comprising anintermittently fed ribbon strip of relative to the raised guide 30, sothat movement tip-forming material, and tip-forming die membetween thearms 42, 42 will engage the raised sever a tip-forming length from thelatter, of a guide and lower the latter to feedingposition. pivotallymovable guide member for the feeding I have also shown a recessedchamber formed in end of said strip, means to move said guide away thetable 50, to receive a wick 5| or the like, and from said die membersafter severance of each supply said chamber through a pipe 52' from atip-forming strip length, and lacing guides to suitable source cfsuppiy53, with a suitable liquid Said die members for the lacing t0 be tippedposisolvent, a proper amount being applied t0 each tl'OIled t0 CauseContact Of the lacing with Said lacing as it passes over said wick 5| onits way to Strip guide t0 IIlOVe the latter H1120 feeding posi- 25 thedie chamber. This wick 5| and its supply 53 tion relative to said diemembers.

is removed from the action of the heated die, 4. In combination with alace-tipping machine and by proper location of said supply 53, anadecomprising an intermittently fed ribbon strip of quate level may bemaintained to saturate the tip-forming material, and tip-forming diememwick without danger of leakage and waste bebers cooperatively movablewith said fed strip to tween machine operations. sever a tip-forminglength from the latter, of a From the foregoing description it isbelieved pivotally movable guide member for the feeding the nature of myimprovements and their adend of said strip, means to move said guideaway vantages in the improved operation of the mafrom said die membersafter severance of each chine will be readily understood. The lower endtip-forming strip length, a supporting table for of the tip-formingstrip or ribbon is constantly the lacings to be tipped having a liquidsolvent 4 into die-feeding position.

curate positioning of the latter. 5. In a lace-tipping machine, a pairof coop- The shaft 6 is shown as preferably, though not erativelymovable tip-forming die members havnecessarily, power driven by a gearwheel 60 and ing a heating unit therefor, a supply of tip-formdrivepinion 6|, and each shaft rotation is a coming material in the form of aribbon strip, feeding rollers for said strip, a hingedly mounted guidebe driven, as desired, in a continuous timed rochute for the end of saidstrip swingable into tation, or in single cycles started by the operaandout of feeding position relative to said tiptor, and the retractingspring or plunger shaft 8 forming die members, a. plunger shaft for onekeeps the head of the latter in contact with cam. die member having afeed-roller driving connecshown in the 4drawing a bell crank pivotallymeans for axially moving said plunger shaft to mounted on the frame at65, with one arm 66 cooperatively feed said ribbon strip to said diebearing against the inner face of the shaft head v members, close saiddie members to sever a tipand its other arm 61 positioned for engagementforming length from said strip, and swing said with a pin 68 on cam Thebell-crank acts to guide chute awayy from said die members after repairsare needed. tive to receive said strip, cut an end length thereset forthin the following claims: a spaced distance therefrom removed from theWhat I claim is: heat action of saiddies.

1. In combination with a lace-tipping machine 7. In combination with alace-tipping machine comprising an intermittently fed ribbon strip ofcomprising an mtermittently fed ll'bbOn Strip 0f tip-forming material,and tip-forming die memtip-forming material, and tip-fOrming die memberscooperatively movable with said fed strip bers` cooperatively movableWith said fed strip to to sever a tip-forming length from the latter, ofsever a tip-forming length from the latter, of a a relatively xed guidemember having a hinged guide member for said strip having a pivotallyextension forthe feeding end of said strip,V and SWiIlgable endmOVablet0 feeding POSIOD by lil 50 To insure positive retraction of shaft 8, Ihave tion and a guide-chute-swmgmg push rod, and

7511193115 to move said guide extensp away from action of the lacingentered into the dies, and` movable to raised non-feeding position byaction end swung into die-feeding position bv engageof the die-closingmeans. ment of the lacing therewith in positioning the 8. In alace-tipping machine having means for latter in the dies, said hingedend being raised feeding a ribbon strip of tip-forming material to anon-feeding spaced distance removed from and cooperating heatedtip-forming dies operathe heat action oi said dies by means operatedtive to receive said strip, cut an end length thereby the closingmovement of said dies.

from and Wrap the same around a lacing laid in n said dies, avgude forsaid strip having a hinged v HAROLD D. REGAR.

